Bolt-cutter.



a W. WOOLGAR. BOLT CUTTER. APPLICATION FILED AUG. 20, 1909.

' 1 q um ntulllmlwih 1 1 'I' M UNITED sTATEs PATENT oEEioE.

WILLIAM WOOLGAR, OF SAGINAW, MICHIGAN.

Bizarr-CUTTER.

opecicaton of Letters Patent.

l Patented Dec. 29, 1908.

l Appueatid slee August 2o, 190s. serial Eminenza.

To all whom it may concern:

Be it known that I, WILLIAM W'OOLGAR,` a citizen of the United States,residing at Saginaw, Michigan, have invented certain new and usefulimprovements in Bolt-Cutters, of which the following is a specification.

My invention relates to bolt and rivet cutters, my object being toprovide a strong kmfe. Fig. 4 is a rear view of the same.

Figs. 5 and 6 aresectional views on lines 5-5 and 6-6. f

In these drawings, 1, indicates the frame of the cutter within whichslides a movable knife 2, this knife bein o erated through,

suitable connections wit t e'hand levers 3 which are pivoted to theframe at 4. The knife is beveled on its upper side and its lower face orcuttin edge works substantially in the plane o the lower edge of `theframe at the oint 5 where this frame is recessed. The rame is formed'with an under wall'at 6, which terminates at the recess.

The fixed knife is supported in the head of the frame in a s ocket 6',and thissocket is formed by an end Wall 7 of the head, of the inwardlyextending shoulders 8, which reach around in front of the shank 9 of thefixed knife, the bottom of the socket being formed by a flange or lip 10cast with the head and extending beneath the fixed knife and terminatingin an abrupt shoulder at 1l, forming one slde'of the recess 5, abovereferred to.

The fixed knife is formed with an abrupt shoulder at 12 between itsblade ortion and its shank portion, this shoulder 'tting down over theunderlying edge of the lip casting above described. The blade portion ofthe knife lies inthe same plane with the upper face of the recess 5 inthe head, and thus .in

the same plane with the cutting edge of the movable knife. The fixedknife blade, like the movable knife blade is beveled on its upper side.The shank of the fixed blade is provided with inclined shoulders `13 onits side edges which 'engage Asimilarly inclined shoulders at the lowerpart of the socket of the head, vwhich receives the fixed blade.Furthermore, as shown in the rear view, Fig.

4, the shank of the knife blade is of \Ishape` at its lower end and thebottom of the socket is correspondingly formed. By this formation of theknife blade and its shank, the fixed knife is centered and heldaccurately in position. 4 It will be noticed that the casting of whichthe head is composed extends below the cutting level and under the shankof the fixed knife giving the head great strength at this point andenabling the apparatus to have greater ower applied thereto. Thisportion of the ead which reaches under `the fixed knife shank and abutsagainst the rear of the fixed knife blade substantially in the plane ofits cutting edge gives the knife greater power and strength beyond thecutting edge. By-

the construction of the head described, it may be 'made light and smallwithout decreasing its strength, thus making it possible to operate thecutter in difficult positions.

By means pfthedrop at the cutting head below the plane of thecuttingedge, the device may'be readilyem loyed for cutting rivets of the properlengt for heading. Further than this, the recess in the head enables theoperator to quickly center thecutter over a rivet head for the purposeof cutting it off, the drop formation of the head acting to guide thesame into position on the rivet.

` I claim as my invention:

1. In a bolt cutter a movable knife, a fixed knife having a shoulderbetween its cutting blade and its back portion, a frame in which themovable knife works having a head for sustaining the fixed knife, saidhead having a socket to receive the fixed knife and having a portionintegral therewith forming the bottom of the socket and extending belowthe plane of the cutting edge and engaging the shouldered portion. ofthe fixed knife, substantially as described.

2. In combination in a bolt cutter, a movable knife, a fixed knife, aframe having a bottom. portion underlying the movable knife and having ahead for holding the fixed knife, said head having a portion extendingbelow the plane ofthe cutting edge of the knives and below a part of thefixed knife,

the said portion of the head and the bottom ico to receive the rivetheed or to determine the length of the rivet for heading, substantiaiiysubstantially as described. as described. i In testimony whereof, Iaffix my signature 3. In combination in e boit ourttei', a frame g inpresence of two witnesses. 5 homing a heed with a socket, therein formedI ,*ILLIAM TOOLGAR 'edges and with an inclined bottom portion, 10

with'aJ gf-shaped bottom, and inwardly .ex-

` tending lugs with inciines at the lower arts Witnesses:

of eid lugs, and a fixed knife having a s mnk i LINCOLN E. BRADT, 'with'inclines at the lower end of its side i )ARL C. ROGERS.

